1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa289198edf10c83da02b5c360fff3e06ba8a2d2d23384536407e9cae6dcccc42. Chain 2 (Bitcoin): anchored in block 953754 (2026-06-15T06:45:19Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/aea9fbe2-0804-4312-9308-6acc86dfe468.json and https://artists.proofprofile.net/proofs/artist/aea9fbe2-0804-4312-9308-6acc86dfe468.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55f13317d83a0d2077c0b1b1d7efaee91d61ff3be1552de39ef4156fa06ebeab. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ZA0G12100026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfab832e01eed9f448dee44646fcd0c3d9d1251a3c0639b69db504b17985c9085. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ZA0G12100027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76fea5a48e394257ef64b170bf2e9ad4c52373853fa9b45ba0b6ef995bbde456. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ZA0G12100029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xedc59e00a1d9743f909d5884d0eea439a412ed04b4af2450ed441a508b1eebf3. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ZA0G12100030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe20b115359e69d4c0728108d4e68f8fc474b1b61d2ba076402941c436edeca1e. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ZA0G12100031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e712d612f652eb45397c0fdc698bae43d8f6f3350c1854d6e2800ca96d0d19a. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ZA0G12100033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67a7197d93f78d5e6fc6bb1e89eb14876583add49ff1b1187ba532bb37b00834. Chain 2 (Bitcoin): anchored in block 957067 (2026-07-07T16:54:37Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ZA0G12100034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ee189bfd1bcbf0fdf04f6687c763c0100243605b8855ce8305c6da5ff8262c4. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ZA0G12100037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34ea029dc87ad93354adad93fd0b4ab3a8e722aa7fe1588558ea9b55b4bbd540. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ZA0G12100038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f4c3cb2b405f952940dea5558cc0564519a5d6329d32735d0205f724d7c9f35. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ZA0G12300051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f469e75c39c27f1772d83a85ab5f2d5dada2b1c5d1927f4d6be24d9e64a9296. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ZABHL2000006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdda888f42dad95e6adcad05ee8bf1503f6bb8be6b03a816fef30471a05dc3dd1. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ZABHL2000004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1aa6edcc77826b4bffd864fcfae08020fc9ce7965aaea7b7131a519e3fb6122e. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ZAP881100013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c8c7c2451ca55c7f9328cd211ad4284084fb9ed46bc86c241454f02a5072251. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ZAY362400019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3683a4f5835f2298966298840317277875c704b660cdc10c9ce9db54cf8feaac. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ZAY362400020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x608b2c33ca3db359d933425623074b26dc6230d2ba1470613f2076b33befeecf. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ZAY362400021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c2267a6919dcb3315073bc4ec93d92948dc94a5e0c64d11c16c6ac150373691. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ZAY362400022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x246c7371de54a6c8f3181f112b505875443e284d70fc1ed677a3adcc896d48f3. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ZAY362400023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fde24dc587444da2aafad715f196c2474797bdb2b84bad6031b1354adf82939. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ZAY362400024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc69bcbad517a8d44faa5f5b49c17e3982f0f2fb3e9bedd735ad6fdb32900454f. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ZAY362400025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x731e438e6708d02748ca8c622fe4c5882530707020ba16bf97da4a771146c670. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ZAY362400026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc0636969fae7860d09e657099ff571bf6f52e4ae9546f17d54743777efe3c78. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ZAY362400027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe81825586c31c2c92d9f9715f4ba5d66d57e3ff5489ec5eb09ffd008a5e3d1bd. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ZAY362400028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d4c1f8f08065372e83efff229976b833cdd64c4dbac30ad3190dd38c3090202. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ZAY362400029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70b538a676917c67943e730ddbb0a239c9febab10f6335cb3fb9fd51b6ad74a4. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ZAY362400030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e0afd0f3385e790ec59874813f9d7b10c8f044673c9d31f96b2cde2f916526c. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ZAY362400031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e26f45b18632a641c80233989ac8b8d541b2923fe2bce842a7286e848db16bc. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ZAY362400032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c93eec41b141bbbd8aaf56f673b89946df4c473c6ca3909e6b8d9ee3c7167f1. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ZAY362400033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4451c5c046132134aca2369bf3420c0253570426d47a5a3efce66e523c66e51. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ZAY362400034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75ae05eede5c44ee52ca80776c6da68aee0789d9a4c949463d76cd77dac95879. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ZAY362400035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2975a587ac2d07159c25200d887250a976c1fb8096cfd9cc01f3d91275c90e5. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ZAY362400036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd72692eccccba336a65b4c4354ab28a6ecc4948ef52b8e63e4cf4a34e65b2a24. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ZAY362400037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8bfe797844fb0cef954ebf5334084ce3b020092bfa2a9cf9dbd9de77a588f66. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ZAY362400038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e3566b65efa259da959ba7aca5e1525faf7f3fc5d1c1ce872af1d91c2e449a7. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ZAX621500039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed6fef8398f92900f893cfac1eab8fe78ff3701c5f6b2d18e9b063c1aa2f49cf. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ZAX621500041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96f15e3e857e9c6f3e2c3faa139685495cf357135d2d2b0bc0b192b53af558d8. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ZAX621500042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1cc2303483cc60107a4588a10b419072ef7739713e78f6906977af14d61bf9b3. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ZAX621500027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x475816f68015d560b04e5fa20a35b90f785811a9bbcf631e29cd1b7534176931. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ZAX621500029.